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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ondrej Jirman <megous@megous.com>
Date: Fri, 26 Jun 2020 02:55:56 +0200
Subject: [PATCH] drm/panel: st7703: Move generic part of init sequence to
enable callback
Calling sleep out and display on is a controller specific part
of the initialization process. Move it out of the panel specific
initialization function to the enable callback.
Signed-off-by: Ondrej Jirman <megous@megous.com>
---
drivers/gpu/drm/panel/panel-sitronix-st7703.c | 33 ++++++++++---------
1 file changed, 18 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
index d03aab10cfef..cdbf7dfb4dd4 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
@@ -84,8 +84,6 @@ static inline struct st7703 *panel_to_st7703(struct drm_panel *panel)
static int jh057n_init_sequence(struct st7703 *ctx)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
- struct device *dev = ctx->dev;
- int ret;
/*
* Init sequence was supplied by the panel vendor. Most of the commands
@@ -136,20 +134,7 @@ static int jh057n_init_sequence(struct st7703 *ctx)
0x18, 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41,
0x37, 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10,
0x11, 0x18);
- msleep(20);
-
- ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
- if (ret < 0) {
- DRM_DEV_ERROR(dev, "Failed to exit sleep mode: %d\n", ret);
- return ret;
- }
- /* Panel is operational 120 msec after reset */
- msleep(60);
- ret = mipi_dsi_dcs_set_display_on(dsi);
- if (ret)
- return ret;
- DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done\n");
return 0;
}
@@ -181,6 +166,7 @@ struct st7703_panel_desc jh057n00900_panel_desc = {
static int st7703_enable(struct drm_panel *panel)
{
struct st7703 *ctx = panel_to_st7703(panel);
+ struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
int ret;
ret = ctx->desc->init_sequence(ctx);
@@ -190,6 +176,23 @@ static int st7703_enable(struct drm_panel *panel)
return ret;
}
+ msleep(20);
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->dev, "Failed to exit sleep mode: %d\n", ret);
+ return ret;
+ }
+
+ /* Panel is operational 120 msec after reset */
+ msleep(60);
+
+ ret = mipi_dsi_dcs_set_display_on(dsi);
+ if (ret)
+ return ret;
+
+ DRM_DEV_DEBUG_DRIVER(ctx->dev, "Panel init sequence done\n");
+
return 0;
}
--
2.26.2
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